def main():
    x = int(input())
    if x <= 599:
        return 8
    elif x <= 799:
        return 7
    elif x <= 999:
        return 6
    elif x <= 1199:
        return 5
    elif x <= 1399:
        return 4
    elif x <= 1599:
        return 3
    elif x <= 1799:
        return 2
    return 1
print(main()) def main():
    x = int(input())
    if x <= 599:
        return 8
    elif x <= 799:
        return 7
    elif x <= 999:
        return 6
    elif x <= 1199:
        return 5
    elif x <= 1399:
        return 4
    elif x <= 1599:
        return 3
    elif x <= 1799:
        return 2
    return 1 main x = int(input()) x int(input()) int input() input if x <= 599:
        return 8
    elif x <= 799:
        return 7
    elif x <= 999:
        return 6
    elif x <= 1199:
        return 5
    elif x <= 1399:
        return 4
    elif x <= 1599:
        return 3
    elif x <= 1799:
        return 2
     x <= 599 x 599 return 8 8 elif x <= 799:
        return 7
     x <= 799 x 799 return 7 7 elif x <= 999:
        return 6
     x <= 999 x 999 return 6 6 elif x <= 1199:
        return 5
     x <= 1199 x 1199 return 5 5 elif x <= 1399:
        return 4
     x <= 1399 x 1399 return 4 4 elif x <= 1599:
        return 3
     x <= 1599 x 1599 return 3 3 elif x <= 1799:
        return 2
     x <= 1799 x 1799 return 2 2 return 1 1 print(main()) print main() main def main():
    x = int(input())
    if x <= 599:
        return 8
    elif x <= 799:
        return 7
    elif x <= 999:
        return 6
    elif x <= 1199:
        return 5
    elif x <= 1399:
        return 4
    elif x <= 1599:
        return 3
    elif x <= 1799:
        return 2
    return 1 def main():
    x = int(input())
    if x <= 599:
        return 8
    elif x <= 799:
        return 7
    elif x <= 999:
        return 6
    elif x <= 1199:
        return 5
    elif x <= 1399:
        return 4
    elif x <= 1599:
        return 3
    elif x <= 1799:
        return 2
    return 1 main
def main():
    x = int(input())
    if x <= 599:
        return 8
    elif x <= 799:
        return 7
    elif x <= 999:
        return 6
    elif x <= 1199:
        return 5
    elif x <= 1399:
        return 4
    elif x <= 1599:
        return 3
    elif x <= 1799:
        return 2
    return 1
print(main())
